API Testing and Postman Essentials with Interview Prep

Effective API testing requires a solid understanding of how web services communicate. This text-based course guides you through the foundational principles of API architecture, network protocols, and practical request execution using Postman. You will build confidence in evaluating backend endpoints, analyzing responses, and automating test workflows for modern software development. What you'll learn: Understand core network protocols, HTTP methods, headers, and status codes. Differentiate between REST, SOAP, and GraphQL architectural styles. Structure Postman workspaces, collections, environments, and dynamic variables. Write automated assertions and test scripts to validate API responses. Handle modern API authentication using bearer tokens and OAuth workflows. Review common technical interview questions and scenario-based testing challenges. The content starts with fundamental terminology and protocol mechanics before leading into practical Postman workflows and script automation. This course is ideal for beginner software testers and aspiring QA professionals with no prior experience required. Begin reading today to strengthen your backend testing skills.